Case cementing method and system

Details Case cementing method and system Case cementing method and system

E - Fixed Constructions

21

B

E21B 33/16 (2006.01) E21B 21/10 (2006.01)

Patent

CA 2128337

A system for cementing well casing (16) in a bore hole (12) utilizes only top (22) and bottom (20) cementing plugs. The well casing (16) has on its lower end an inwardly extending lip (18) to engage a latch (30) on the lower portion of the bottom cementing plug (20). The bottom cementing plug (20) has a through passage (26) that is covered on the top by a diaph- ragm (32) and on the bottom by another diaphragm (34).

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